Elachistidae
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Similar Suffolk Species
Elachista freyerella
Broken-barred Dwarf
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Elachista stabilella
Southern Dwarf

Stainton, 1858633 / 38.049
=Cosmiotes stabilella

Morley’s Final Catalogue: Local and mainly southern. Southwold in 1897 (Crutwell).

Recent Status: The species is recorded in Suffolk

Life Style: A double or triple brooded species. The larvae mine downwards in a variety of grasses. They pupate in a dense cocoon.

Identification: There are three Elachista species of the once Cosmiotes genus that can be identified by a combination of Genitalia dissection and head colour. E. consortella male lacks a hook on the valve and the female has a short antrum narrowing abruptly. E. freyerella and E. stabilella both have a white frons but in E. stabilella the vertex becomes speckled fuscous grey. Differences in the genitalia of these two species is slight paticularly for the males and MBGBI should be referred to. The forewings are dark with white markings. There is a small spot on the base of the dorsum, a fascia at one third, opposed tornal and costal spots separated by a narrow dark bar and a narrow band at the termen. Females are darker than males. Marking may be obscure.
The larvae of these species mine a variety of grasses except that E. consortella is stated to be specific to Poa annua. The larvae are stated as having different head and prothoracic plate colour. Yellowish for E. consortella, black for E. freyerella and pale brown for E. stabilella.

Retained Specimen / Photograph will be Required.

Recorded in 4 (7%) of 58 10k Squares.
First Recorded in 1897.
Last Recorded in 2019.
Additional Stats

Elachista consortella  |  Blastodacna hellerella >

Determination
Staverton Park Suffolk - Raymond A Watson
List Species Records   [Show All Latest]
Latest 5 Records
Date#VC10k Area
15/09/2019125TM24 - Woodbridge/Martlesham
14/07/2015+25TM35 - Snape/Tunstall
05/06/2011125TM24 - Woodbridge/Martlesham
14/07/2004125TM23 - Felixstowe/Landguard Point
1897+25TM57 - Southwold
Show Details | 1990 to 2019 | 2000 to 2019 |
Express Record Elachista stabilella
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Copyright © Jim Wheeler 2020
   

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Wingspan: 7-8mm.
Flight: Two Generations. May-June. July-August
Foodplant:   Various grasses
Nat Status: Nationally Scarce B
Verification Grade:  Adult: 3
 Immature Adult
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Underlying maps using Digital Map Data © Norfolk Online Lepidoptera Archive - NOLA™ - Suffolk 2020. © James Wheeler - Norfolk Moths 2007 - 2020. Data © NOLA™ - Suffolk 2020
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